Welcome to the website of the lab of Charles H. Ahn, William K. Lanman Jr. Professor of Applied Physics, Physics and of Mechanical Engineering and Materials Science

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The Ahn Lab is a research group affiliated with the Department of Applied Physics at Yale University and the Center for Research on Interface Structures and Phenomena (CRISP), a National Science Foundation Materials Research Science and Engineering Center (NSF-MRSEC). The lab investigates the electronic and magnetic properties of strongly correlated oxide materials.

Lab News

Article authored by Ahn's lab has been selected as an Editors’ Choice in Science

Solid-State Physics: Engineering a copper oxide look-alike

''Many discoveries of spectacular material properties are serendipitous. Scientists can make the discovery process more predictable if they design materials from the “bottom up” to behave in a certain way. Disa et al. fabricated heterostructures consisting of alternating layers of LaTiO3, LaNiO3, and LaAlO3, with the aim of making a material in which the top two valence orbitals are filled with electrons to very different degrees. This property can lead to exotic effects and may be useful for making high temperature copper oxide superconductors. The authors used x-ray absorption spectroscopy to verify the properties of the heterostructure. Their theoretical calculations showed that replacing LaAlO3 with a different material can lead to further improvements.'' Jelena Stajic

Phys. Rev. Lett. 10.1103/PhysRevLett.114.026801 (2015).

The publication of the book Physics of Ferroelectrics: A Modern Perspective, and the cover of Advanced Materials in 2010.